Invention Grant
- Patent Title: Anamorphic lens
- Patent Title (中): 变形镜头
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Application No.: US12732165Application Date: 2010-03-25
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Publication No.: US08049967B2Publication Date: 2011-11-01
- Inventor: Masatoshi Hirose
- Applicant: Masatoshi Hirose
- Applicant Address: JP Tokyo
- Assignee: Konica Minolta Opto, Inc.
- Current Assignee: Konica Minolta Opto, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Cozen O'Connor
- Priority: JP2009-127485 20090527
- Main IPC: G02B13/08
- IPC: G02B13/08

Abstract:
Provided is a low-cost and compact super-wide-angle anamorphic lens having small number of lenses and exhibiting excellent lens performance when the lens is used for an onboard camera, capturing of an unwanted portion is minimized. The super-wide-angle anamorphic lens has an angle of view of 180° or more in the horizontal direction, and includes a first lens having a negative power, a second lens having a negative power, a third lens having a positive power, a fourth lens having a positive power in that order from an object side. One of the aforementioned third lens and fourth lens is provided with at least one non-rotationally symmetric aspherical surface.
Public/Granted literature
- US20100302647A1 Anamorphic Lens Public/Granted day:2010-12-02
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